Mosaic CEO to Take Medical Leave

Financial Chief Named Interim CEO

Mosaic Co. said Chief Executive James T. Prokopanko is taking a medical leave of absence for surgery to treat cancer and named financial chief Lawrence W. Stranghoener as interim CEO.

Mr. Stranghoener, whose appointment is effective June 1, intends to retire at the end this year, the company said. Mosaic named Richard L. Mack, currently its general counsel and corporate secretary, as its new chief financial officer.